Patents by Inventor Sonomi FUKUYAMA

Sonomi FUKUYAMA has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Current collector for lithium ion battery and manufacturing method of the current collector
    Patent number: 11355758
    Abstract: A current collector for a lithium ion battery includes a first conductive resin layer and a second conductive resin layer. The first conductive resin layer includes a first conductive filler. The second conductive resin layer is formed on the first conductive resin layer and includes a second conductive filler. The first conductive filler is a conductive carbon. The second conductive filler contains at least one kind of metal element selected from the group consisting of platinum, gold, silver, copper, nickel, and titanium. A volume % of the second conductive filler in the second conductive resin layer on a first surface side, which is a first conductive resin layer side, is higher than that on the second surface side that is opposite to the first conductive resin layer.
    Type: Grant
    Filed: September 3, 2020
    Date of Patent: June 7, 2022
    Assignees: GUNZE LIMITED, APB Corporation
    Inventors: Kazuaki Onishi, Masahiro Uchimaru, Ryosuke Kusano, Sonomi Fukuyama, Shun Kudoh, Yasuhiro Tsudo, Hideaki Horie
  • CURRENT COLLECTOR FOR LITHIUM ION BATTERY AND MANUFACTURING METHOD OF THE CURRENT COLLECTOR
    Publication number: 20220045333
    Abstract: A current collector for a lithium ion battery includes a first conductive resin layer and a second conductive resin layer. The first conductive resin layer includes a first conductive filler. The second conductive resin layer is formed on the first conductive resin layer and includes a second conductive filler. The first conductive filler is a conductive carbon. The second conductive filler contains at least one kind of metal element selected from the group consisting of platinum, gold, silver, copper, nickel, and titanium. A volume % of the second conductive filler in the second conductive resin layer on a first surface side, which is a first conductive resin layer side, is higher than that on the second surface side that is opposite to the first conductive resin layer.
    Type: Application
    Filed: September 3, 2020
    Publication date: February 10, 2022
    Inventors: Kazuaki ONISHI, Masahiro UCHIMARU, Ryosuke KUSANO, Sonomi FUKUYAMA, Shun KUDOH, Yasuhiro TSUDO, Hideaki HORIE
  • RESIN CURRENT COLLECTOR
    Publication number: 20220045334
    Abstract: A resin current collector is a current collector for a positive electrode of a lithium ion battery. This resin current collector includes a polyolefin resin and a conductive carbon filler. With this resin current collector, a value obtained by dividing the yield point strength in the TD (Traverse Direction) by the yield point strength in the MD (Machine Direction) is at least 0.75 and at most 1.10, and the ten-point average roughness Rz in the TD is less than 4 ?m.
    Type: Application
    Filed: September 3, 2020
    Publication date: February 10, 2022
    Inventors: Takehiro ISO, Kazuaki ONISHI, Hiroyuki NONAKA, Yasuji MARUYAMA,, Ryosuke KUSANO, Sonomi FUKUYAMA, Shun KUDOH, Yasuhiro TSUDO, Hideaki HORIE